Finding the Fourth Proportional to 13,081,717.62, 18,052,770.36 and 7,281,869.49
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Solution
The fourth proportional to 13,081,717.62, 18,052,770.36 and 7,281,869.49 is: 10,048,979.92
Step by Step Solution
- Step 1: Write the proportion equation
13,081,717.62 : 18,052,770.36 = 7,281,869.49 : x - Step 2: Convert to fraction form
13,081,717.62/18,052,770.36 = 7,281,869.49/x - Step 3: Cross multiply
13,081,717.62x = 18,052,770.36 × 7,281,869.49 - Step 4: Simplify right side
13,081,717.62x = 131,457,917,694,460.31 - Step 5: Solve for x
x = 131,457,917,694,460.31/13,081,717.62 - Step 6: Final answer
x = 10,048,979.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.